These NICETOWN blackout curtains deliver serious light control with their triple weave fabric that blocks 85-99% of light and UV rays, protecting your furniture and floors from fading. Each panel is 42 inches wide by 63 inches long, and a pair covers a standard window with 6 grommets per panel that fit standard curtain rods. The dense polyester construction insulates your room against summer heat and winter cold, which actually translates to lower energy bills since your AC and heating won't work as hard. They arrive wrinkle-free and ready to hang with no prep work needed. The noise-reducing properties are a nice bonus if you live near traffic or just want a quieter bedroom. Machine washable in cold water and built to last, these curtains are a practical investment that pays for itself over time.